Kill-Box Mate - Chess Tactic

 The Kill Box Mate
is a checkmate pattern where a queen and rook work together to checkmate the enemy king.

 An important feature of this pattern is that the queen defends the rook whilst at the same time trapping the enemy king “in a box.”

Kill-Box Mate Chess Articles

Kill Box Mate - ChessFox Article w/ 2 Examples

Kill-Box Mate LiChess Studies

Checkmate Patterns IV - 1 Example - (LiChess Mate Practice Area)

Kill Box Mate - 9 Chapter Study -  9 Examples w/ solutions

Kill Box Mate - 7 Chapter Study - 7 examples w/ solutions

Kill Box Mate 21 -  64 Chapter Interactive Study - 64 problems to solve interactively (Well Done)

Kill-Box Mate Video Lessons

The KillBox Mate - 4 Min - Chess for Children - demonstrates a specific checkmate pattern known as the KillBox Mate, a type of protection checkmate.

Kill Box Checkmate 101 - 3 Min - GM Swapnil Dhopade - In the Kill Box Checkmate, a rook delivers the checkmate to the king, supported by a queen that covers most of the escape squares. The video emphasizes the importance of understanding this pattern to effectively use it in games.

Bishops Bounty Checkmate Patterns Main Page 

The Kill Box Mate pattern is also used as an “ingredient” in another checkmate
  The RailRoad Mate.